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Java Forum / General / July 2006What in Hell are Sun playing at with learning JNI ?
Anyone know what Sun is doing with JNI reference material ? There used to be a valuable JNI trail in the Java Tutorial, but it's been unreachable for months and is no longer linked to from the main tutorial pages. There used to be a copy of Sheng Liang's book on the website too, but all that stuff has been replaced by a link to some online bookshop. It seems that they don't /want/ people to learn how to program JNI. Are those cretins under the impression that the Java libraries are so perfect and complete that no one will ever need anything else ? At this rate they'll be removing the JNI specification from the next JDK. <fume/> -- chris If an Operating System is developed for the existing JVM and if the programmer is not allowed to develop program that depends on the native OS or hardware then I think the application developer need not worry about the JNI interface. Perhaps this may be the reason why JNI may not be useful in future.... Please correct me if I'm wrong. Thanks , Pradeep > Anyone know what Sun is doing with JNI reference material ? > [quoted text clipped - 12 lines] > > -- chris > If an Operating System is developed for the existing JVM and if the > programmer is not allowed to develop program that depends on the native > OS or hardware then ... ... the application I'm working on will get rewritten in C++. (Which it should have been in the first place; I'm currently having to do bits of it in C++ via JNI.) -- Tim Ward Brett Ward Limited - www.brettward.co.uk > If an Operating System is developed for the existing JVM and if the > programmer is not allowed to develop program that depends on the native [quoted text clipped - 3 lines] > > Please correct me if I'm wrong. You're only missing one condition: "and everyone switches over to using that operating system". That last condition is a real woozy, though.  SignatureChris Smith - Lead Software Developer / Technical Trainer MindIQ Corporation > > If an Operating System is developed for the existing JVM and if the > > programmer is not allowed to develop program that depends on the native [quoted text clipped - 10 lines] > Chris Smith - Lead Software Developer / Technical Trainer > MindIQ Corporation It doesn't surprise me if all the future applications are developed on top of Java OS and Java Virtual Machine. ---Pradeep >> If an Operating System is developed for the existing JVM and if the >> programmer is not allowed to develop program that depends on the native [quoted text clipped - 6 lines] > You're only missing one condition: "and everyone switches over to using > that operating system". That last condition is a real woozy, though. And yet, people continue to download JBoss. > >> If an Operating System is developed for the existing JVM and if the > >> programmer is not allowed to develop program that depends on the native [quoted text clipped - 8 lines] > > And yet, people continue to download JBoss. Huh? SignatureChris Smith - Lead Software Developer / Technical Trainer MindIQ Corporation > > >> If an Operating System is developed for the existing JVM and if the > > >> programmer is not allowed to develop program that depends on the native [quoted text clipped - 10 lines] > > Huh? LMAO!!!! > > > And yet, people continue to download JBoss. > > > > Huh? > > LMAO!!!! Grow up. SignatureChris Smith - Lead Software Developer / Technical Trainer MindIQ Corporation > > > > And yet, people continue to download JBoss. > > > [quoted text clipped - 3 lines] > > Grow up. No thanks, the punishments would be more severe if I did. ;) >> >> If an Operating System is developed for the existing JVM and if the >> >> programmer is not allowed to develop program that depends on the native [quoted text clipped - 10 lines] > > Huh? Nothing serious. I was just venting frustration at our app server, which (out of the box) takes almost as long to start as the OS we're running it on and provides almost as many services. I'm convinced the JBoss people think the JVM needs an OS and they're writing one. --o > I'm convinced the JBoss people think the JVM needs an OS and they're > writing one. Maybe they should merge with the Emacs people ;-) Come to think of it, I'm sure Emacs must have a webserver built-in already -- but perhaps not yet a full enterprise applications server framework... -- chris > >> >> If an Operating System is developed for the existing JVM and if the > >> >> programmer is not allowed to develop program that depends on the native [quoted text clipped - 17 lines] > I'm convinced the JBoss people think the JVM needs an OS and they're > writing one. What are you doing on JBoss? I get Jboss done and ready in less than 30 minutes. <snipped/> >> I'm convinced the JBoss people think the JVM needs an OS and they're >> writing one. > > What are you doing on JBoss? I get Jboss done and ready in less than > 30 minutes. 30 minutes? What are you running it on? A Sinclair Spectrum? ;-) SignatureDag. > <snipped/> > >> I'm convinced the JBoss people think the JVM needs an OS and they're [quoted text clipped - 10 lines] > > -- Haha. The computer is not slow, I am. JBoss runs as is,but I usually need to add resources, do some db work, set up an Apache front end, lock down the administrative web access. By the time I am done, thirty minutes or maybe more has elapsed. > Dag. > There used to be a copy of Sheng Liang's book on the website too, > but all that stuff has been replaced by a link to some online > bookshop. The book is still online: http://java.sun.com/docs/books/jni/index.html I've no idea why they've removed the JNI trail from the tutorial however. /gordon Signature[ do not email me copies of your followups ] g o r d o n + n e w s @ b a l d e r 1 3 . s e [me:] > > There used to be a copy of Sheng Liang's book on the website too, > > but all that stuff has been replaced by a link to some online > > bookshop. > > The book is still online: > http://java.sun.com/docs/books/jni/index.html Well, that's something. Thanks. Now, for extra credit: find a link /to/ that page from anywhere else in Sun's Java documentation ;-) -- chris > Now, for extra credit: find a link /to/ that page from anywhere else > in Sun's Java documentation ;-) Start at the J2SE 5.0 documentation, follow the JNI link, then the "tips" link to arrive at the "book available" page. Follow the link "Code examples in the book can be downloaded here" and finally "view HTML". /gordon Signature[ do not email me copies of your followups ] g o r d o n + n e w s @ b a l d e r 1 3 . s e > [me:] >>> There used to be a copy of Sheng Liang's book on the website too, [quoted text clipped - 9 lines] > > -- chris Not too difficult : Click on the JNI-"brick" in the JSE diagram <http://java.sun.com/j2se/1.5.0/docs/> -> <http://java.sun.com/j2se/1.5.0/docs/guide/jni/index.html> -> <http://java.sun.com/products/jdk/faq/jnifaq.html> -> <http://java.sun.com/docs/books/jni/> You can transfer your credits to my airmiles account ;-) SignatureRegards, Roland > You can transfer your credits to my airmiles account ;-) Do you accept Monopoly money ? But thanks, anyway (and to Gordon). -- chris Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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